In a world where the seas rule unchallenged, for years now there have been rumors of a war involving unexpected and unstoppable forces. A war that only Poseidon himself could stop...but for centuries now, the sea god has stopped showing himself to men. Xen Essel has always lived in the gray climate of Gelider, an island located in the western sea. With a father, a mother, his mysterious and cheerful best friend Celeste, and a bloody job with years and years of monster blood-stained hands...but his destiny is turned upside down when the arrival of a wizard disrupts his existence forever. A journey of mystery, magic, hope and loss to find a lost past.